:root {
  --dropdown-bg: #2a2a3c;
  --dropdown-border: #3d3d52;
  --dropdown-text: #e0e0e8;
  --dropdown-hover: #323247;
  --dropdown-selected-bg: #3a2e6d;
  --dropdown-selected-text: #9a86fd;
  --dropdown-accent: #7b68ee;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
  padding: 20px;
}

.container {
  background: #1e1e2d;
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  width: 100%;
  max-width: 900px;
  padding: 40px;
  border: 1px solid #2d2d3a;
}

header {
  text-align: center;
  margin-bottom: 40px;
}

h1 {
  color: var(--dropdown-selected-text);
  font-size: 32px;
  margin-bottom: 10px;
  text-shadow: 0 0 10px rgba(154, 134, 253, 0.3);
}

.subtitle {
  color: #a5a8b3;
  font-size: 18px;
  max-width: 600px;
  margin: 0 auto;
}

.content {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
}

.demo-section {
  flex: 1;
  min-width: 300px;
}

.section-title {
  font-size: 20px;
  color: var(--dropdown-selected-text);
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid #2d2d3a;
}

.dropdown-container {
  position: relative;
  width: 100%;
  margin-bottom: 30px;
}

.dropdown-toggle {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 14px 20px;
  background: var(--dropdown-bg);
  border: 2px solid var(--dropdown-border);
  border-radius: 12px;
  font-size: 16px;
  color: var(--dropdown-text);
  cursor: pointer;
  text-align: left;
  transition: all 0.3s ease;
}

.dropdown-toggle:hover {
  border-color: var(--dropdown-accent);
  background: var(--dropdown-hover);
}

.dropdown-toggle:focus {
  outline: none;
  border-color: var(--dropdown-accent);
  box-shadow: 0 0 0 3px rgba(123, 104, 238, 0.3);
}

.dropdown-toggle.open {
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
  border-color: var(--dropdown-accent);
}

.placeholder {
  color: #8a8a9c;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  background: var(--dropdown-bg);
  border: 2px solid var(--dropdown-accent);
  border-top: none;
  border-bottom-left-radius: 12px;
  border-bottom-right-radius: 12px;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transform: translateY(-10px);
  transition: all 0.3s ease;
  z-index: 10;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
}

.dropdown-menu.open {
  max-height: 300px;
  opacity: 1;
  transform: translateY(0);
}

.dropdown-item {
  padding: 14px 20px;
  font-size: 16px;
  color: var(--dropdown-text);
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
}

.dropdown-item:hover {
  background: var(--dropdown-hover);
}

.dropdown-item.selected {
  background: var(--dropdown-selected-bg);
  color: var(--dropdown-selected-text);
  font-weight: 600;
}

.dropdown-item:not(:last-child) {
  border-bottom: 1px solid var(--dropdown-border);
}

.states-section {
  flex: 1;
  min-width: 300px;
}

.state-card {
  background: var(--dropdown-bg);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 20px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  border: 1px solid var(--dropdown-border);
  color: #a5a8b3;
}

.state-title {
  font-size: 18px;
  color: var(--dropdown-selected-text);
  margin-bottom: 15px;
  display: flex;
  align-items: center;
}

.state-title i {
  margin-right: 10px;
  color: var(--dropdown-accent);
}

.state-content {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.state-dropdown {
  background: var(--dropdown-bg);
  border: 2px solid var(--dropdown-border);
  border-radius: 12px;
  padding: 12px 16px;
  color: var(--dropdown-text);
  display: flex;
  justify-content: space-between;
}

.state-open {
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
  border-color: var(--dropdown-accent);
}

.state-list {
  border: 2px solid var(--dropdown-accent);
  border-top: none;
  border-bottom-left-radius: 12px;
  border-bottom-right-radius: 12px;
  overflow: hidden;
  background: var(--dropdown-bg);
}

.state-item {
  padding: 12px 16px;
  border-bottom: 1px solid var(--dropdown-border);
  color: var(--dropdown-text);
}

.state-item.selected {
  background: var(--dropdown-selected-bg);
  color: var(--dropdown-selected-text);
  font-weight: 600;
}

.instructions {
  background: var(--dropdown-bg);
  border-radius: 12px;
  padding: 20px;
  margin-top: 30px;
  border-left: 4px solid var(--dropdown-accent);
  border: 1px solid var(--dropdown-border);
}

.instructions h3 {
  color: var(--dropdown-selected-text);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
}

.instructions h3 i {
  margin-right: 10px;
}

.instructions ul {
  padding-left: 20px;
}

.instructions li {
  margin-bottom: 8px;
  color: #a5a8b3;
}

.state-display {
  background: var(--dropdown-bg);
  border-radius: 12px;
  padding: 20px;
  margin-top: 10px;
  border: 1px solid var(--dropdown-border);
}

.state-display h3 {
  color: var(--dropdown-selected-text);
  margin-bottom: 10px;
  font-size: 18px;
}

.state-info {
  color: #a5a8b3;
  font-size: 16px;
  line-height: 1.6;
}

.state-info span {
  color: var(--dropdown-selected-text);
  font-weight: 600;
}

@media (max-width: 768px) {
  .content {
    flex-direction: column;
  }

  .container {
    padding: 30px 20px;
  }
}

.icon {
  color: var(--dropdown-accent);
  font-size: 14px;
  margin-right: 8px;
}

.glow {
  animation: glow 2s infinite alternate;
}

@keyframes glow {
  from {
    box-shadow: 0 0 5px -5px var(--dropdown-accent);
  }

  to {
    box-shadow: 0 0 10px 2px var(--dropdown-accent);
  }
}